My first trip to DefCon was driven by wanting to attend this talk. I had to watch it on DefCon TV, as the room was packed. Unfortunately, the docs were not present on the DC CD. So, I had to watch a lot of people running demos, without seeing the demos themselves, and of course listen to the talk with no slides.

The Web Application Hackers Handbook is supposed to be updated to cover web services... I should have my copy by the end of the week... Would be nice to have now, as I'm in the middle of a pen test that's employing JSON.